Dust separator and collector.



-110.881,194. PATENTED MAR. 10,1908.

W. 1?. M'OUGHLER. Y

DUSTv SEPARATOR AND COLLECTOR;

APPLICATION FILED MAR.2.1907.

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UNITED STATES PATENT OFFICE..

WILLIAM F. MOUGIILER, OF TOLEDO, OHIO, ASSIGNOR TO THE VACUUM AND COMPRESSOR` COMPANY, OF WAUSEON, OHIO, INCORPORATED.

DUST SEPARATOR AND COLLECTOR.

Specification of Letters Patent.

Patented March 10, 1908.

Application led March 2, 1907. Serial No. 360,241.

v of producing a vacuum and retained in the apparatus, whereby the fouling and clogging of the means of producing the vacuum is prevented.

In application Serial No. 295,547, I have shown my invention connected to a combined 'vacuum pump and compressor, and forming a part of a dust renovating system, wherein the air drawn through a suction tool by the i vacuum created by the pump is purified by application and is now made the subject of this separate'individual application.

I accomplish the objects of my invention by the construction and combination of parts Y as hereinafter described, claimed and illus.-

trated in the drawings, in which Figure 1 is a longitudinal vertical section of a dust separator and lcollector constructed in accordance with my-invention. Fig. 2 is a similar view with the lower portion broken away, showing a modified form of screen, and Fig. 3 is a cross section on line of Fig. 2. In the drawings 1 represents my separator, which comprises the base cylinder 2, which is mounted on suitable legs or standards 3,

vand has its lower end portion 4 conically rel bottom 11 having central thereof and axial to cylinder 9. cylinder above the bottom 11 is provided an annular ledge 13, which forms a base support' for an inverted screen cap 14, having a central tubular portion 15, closed at the top end and adapted to loosely receive the upper end portion of the open pipe 12, and an enlarged and conically iiared cup shaped screen. portion 16, the lower rim of-which rests on the annular base ledge 13, and supports the-,-

cap with the closed end of the tubular portion 1 5, above the upper end of the open tube or pipe 12.

The bottom 11 of the cylinder 9 is provided with a discharge pipe 17, which extends downward through the wall of the conically reduced portion 4 of the base cylinder 2, and' has coupled to its outer end `portion a tee 18, which has coupled toits lower end a draw off cock 19, and in its upper end is iitted the lower end of a glass sight tube 20. From a point above the ilared screenv portion of the cap 14, there is tapped into thecylinder 9 the pipe 21, which has coupled to its outer end a tee 22, having a branch in end of the glass sight tube 20, and the outer end of the tee 22 is provided with a closure valve 23.

14 is provided with radial spider arms 24, which extend to the wall of the cylinder 9,y and are adapted to hold the tubular portion 15 concentric to the pipe 12, and to support an inner cylinder 25 telescopically insertedl coupled one end of a pipe 28, extending andl connected to the intake of a vacuum :pump

The head 27 is also preferablyy provided with an internally threaded oriiicey (not shown).

29 which is provided with a closure plug 30,: for a purpose hereinafter described.

above the lower end of the cylinder 9 there the cylinder an open pipe 12, extending a suitable .distance towards the top of the'- In the lower portion of the line with and adapted to receive the upperV The tubular portion 15 of the screen cap The headl Into the upper portion of the cylinder 2A is tapped a pipe 3l, the opposite end of which is provided with one or more valve controlled nipples 32, for the attachment thereto of one or more hose pipes 33 of a suitable length, the opposite ends of which are provided with couplings adapting them to be coupled to suitable suction tools (not shown).

The separator thus constructed being connected by the pipe 31 with the intake of a vacuum pump, and the hose pipe or pipes 33 being connected to suitable suction tool or tools, and the cylinder 9 being partly Afilled with water through the orilice 29 in the head 27, until the water level is slightly above the flared screen portion of the cap 14, and the oriiice 29 being closed by the plug 30, when the vacuum pump is operated, a partial vacuum is created in the cylinder 9 above the water level which causes the air to be drawn through the suction tool connected to the hose pipe 33, through the pipe 33 into the top portion of the cylinder 2, thence around the lower portion of the cylinder 9 and up-` ward through the pipe l2, thence downward through the tubular portion l5 of the cap screen 14, and through the screen and the water covering the screen, whereby the dust drawn in with the air through the suetion tool is washed out of the air, which passes to the cylinder of the vacuum pump through the pipe 31 purified.

The pipe 33 enters the top portion of the cylinder 2 above the lower end of the cylinder 9, and within the cylinder 2 is provided with an ell whereby the dust laden air drawn through the pipe 33 is caused to whirl about the lower end of the cylinder 9 by the suction at the upper end, and as thus whirled about the lower end of the cylinder 9 the heavier portions of the dust are thrown oil centrifugally and drop into the lower portion of the cylinder 2 and. are collected in the conically reduced portion 4 of the cylinder 2, from which it is readily removed by removing the closure cap 6 from the spout 5. The lighter and more impalpable portions of the dust are carried up through the pipe-12 and are washed out of the air as it passes through the water and the screen, as before described.

l/Vhen the water in the cylinder 9 becomes overcharged with the dust thus taken up and dissolved therein, the polluted water may be discharged through the discharge pipe 17, and replaced with fresh water as before described. l have found in the practice of thus drawing the air through the water in the collector l that the air is not only purified of any dust that is drawn in with it, but it is also largely relieved of any moisture that it may have absorbed., and it is made drier and better adapted for compression. Prei eenige ture by the rapid passage of air through it, a pipe 34 is connectedat one end to the exhaust ol the engine (not shown), which operates the pump, and extends into the low-er portion of the cylinder 9 el the separator in a coil around the base of the cylinder, and thence to the atmosphere through the exit The pipe 34 is also provided with a two-way closure valve 36, the valve being adapted, when closing the pipe to the cylinder, to permit the exhaust to escape through one way of the valve to the atmosphere, and when open, to direct the exhaust through the separator coil to the exit 35. Y

By means ol the pipe 34, the heat of the exhaust is utilized to maintain the temperature of the water at about blood heat, al which temperature l have found that the dust is more readily dissolved and taken up by the water, whereas without the water being heated, it becomes chilled by the rapid passage of air through it, and the air retains a greasy substance which is carried by the air through the pipe 33, and collects in small quantities at the intake valves olE the pump, which a low degree of heat in the water wholly prevents.

In Figs. 2 and 3 shown a modi'lied form of screen cap 14a, having a central tubular cap portion l5, closed at the top end and provided with the inner cross ribs 36 which support the cap on the upper end ol'l the open pipe 12.

At the lower end of the cap tube l5, and at a suitable distance above are secured the concentric spider flanges 37 each comprising the radial bars 33 extending to the wall ollv the cylinder 9 and connected by the concentric wire rings 39. The radial bars 3S ol the upper and lower spiders 37 are connected by the vertical wires 40. ln the cage thus formed is packed a screen 4l preferably formed ol'curled hair or other similarI fibrous material.

The top spider ila-nge of the screen cap thus formed may extend above the level of the water seal of the air passage between the pipe 1.2 and the cap tube l5a and in operation, as the air passes upward through the water sealthe water forms a Vfoam in the j upper portion ol" the screen which catches any dust that may have passed the seal, and is there dissolved and is carried back into the body of the water as the bubbles are broken up by the screen and descend by gravity erably, also, to prevent the water in the chambers, a liquid seal normally closing the separator being reduced to a low tempera- 1 air passage, means to heat the liquid forming the seal, and a suction pipe connected to the air inlet of the receiving chamber, substantially as and for the purpose set forth.

2. In a dust separator and collector, the combination of an exhaust chamber having an outlet adapted to be connected to a vacuum pump, a receiving chamber having an air inlet, an air passage connecting the chambers, a liquid seal normally closing the air passage, means to heat the liquid forming the seal, a screen interposed in the path of exit of the air drawn through the seal, and a suction pipe connected to the air inlet of the receiving chamber, substantially as and for the purpose set forth.

3. In combination in a dust separator and collector, a receiving cylinder, an exhaust cylinder mounted on and partially in the receiving cylinder, and having an open pipe axial thereto forming an air passage from the receiving into the exhaust cylinder, a screen surrounding the pipe within the exhaust cylinder, having a surmounting cap concentrically inclosing the upper portion of the pipe, and forming an air passage, downward and around the pipe, liquid in the exhaust cylinder submerging the screen, and forming a seal for the air passage between the cap and the pipe, a pipe adapted to connect the air space of the exhaust cylinder with an yair exhaust pump, and thereby draw air the pipe, and forming an air passage, down ward and around. the pipe, liquid in the exhaust chamber submerging the screen, and forming a seal for the air passage between the'cap and the pipe, means to heat the liquid in the exhaust cylinder, a pipe adapted to connect the air space of the exhaust cylinder with an air exhaust pump, and thereby draw air from the receiving chamber through the liquid sealed passage, and a suction pipe connected to the receiving cylinder, substantially as and for the purpose set forth.

5. In combination in a dust separator and collector, a receiving cylinder, an exhaust cylinder mounted on and partially in the receiving cylinder, and having an open pipe axial thereto forming an air passage from t ie receiving into the exhaust cylinder, a screen surrounding the pipe within the exhaust cylinder, having a cap concentrically inclosing the upper portion of the pipe, and forming an air passage, downward and around the pipe, liquid in the exhaust chamber subsealed passage, and means to supply air to the receiving cylinder, substantially as and for the purpose set forth.

In witness whereof, I have hereunto signed my name in the presence of two subscribing witnesses, this 27th day of February, l907.

IVILLIAM F. MOUGHLER.

In presence of:

WM. J. FRIrscHE, l WALTER J. TOEPFER. 

